现在和过去进行时.doc

现在进行时
1．现在进行时表示现在正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作，其时间状语有：now, look, listen等
2．基本结构：肯定句：be：+动词ing 否定句：be+not+动词ing
一般疑问句: be + 主语 + 动词ing？ 特殊疑问句：疑问词 + be + 主语 + 动词ing?
3.动词加ing的变化规则
A．一般情况下，直接加ing，如：cook-cooking
B．以不发音的e结尾，去e加ing，如：make-making, taste-tasting
C．如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：run-running, stop-stopping 还有很多不规则的。
现在进行时专项练习：
一、写出下列动词的现在分词：
play______ read________ sweep stand sit make_________
g o________sleep_________jump walk clean wash
ski________ sing ________ do like_______ write________ have_________
dance_______come ______skate_____ _ ride love_________put________
live_____ swim _______ run_______ get_________ shop________buy _________
二、用所给的动词的正确形式填空：
1.The boy ___ _ _______ ( draw)a picture now.
2. Listen .Some girls _______ ________ ( sing)in the classroom .
3. My mother _______ _______ ( cook )some nice food now.
4. What _____ you ______ ( do ) now? I am reading a book.
5. They _____ _______(not water) the flowers now.
6. What is she doing? She _____ ____ (listen ) to music.
7. ______Helen____________(wash )clothes? Yes ,she is .
8. What are you______ (do),Helen? I’m ______(sit) on the football.
9. Listen. What ____they ____(do)? They ________ (play) the piano.
10. It is three o’clock in the afternoon.. All the children ___________(have) an Art lesson.
11. Don’t play the violin. Your father ________(sleep) in the bedroom.
12. Look at the woman. The boys __________(swim) over there.
13. Listen to the birds. They __________(sing) in the trees.  14. Lucy ________ (not watch) TV now. She ________(read) English.
15. -What ________ they ________ (do) now? -They ________ (have) an English lesson.
三、句型转换：
1．The students are cleaning the classroom . 变否定句
____________________________________________
2．I’m playing the football in the playground .变疑问句
_____________________________________________________________
3．Tom is reading books in his study . 对划线部分进行提问

4. The boy is playing basketball.
一般疑问句/肯定回答：_______________ __________
对画线部分提问：__________________________
5.They are singing in the classroom.
否定句：____________________________
一般疑问句/否定回答：_________________________
对画线部分提问：__________________________
四、按要求转换下列各句：
1. We are having lunch at home.(改为一般疑问句)
　________ you ________ lunch at home?
2. They are reading English in the classroom.(改为单数句)
　　________ ________ reading English in the classroom.
3. Jack is flying the kite now. (对划线部分提问)
　　________ ________ Jack ________ now?
4. They work hard every day.(用now改写句子)
　　They ________ ________ hard now.
过去进行时
　　过去进行时是表示过去某一时刻或某一时间内正在进行或发生的动作。可以从两个方面来理解：1 过去某一时刻正在进行或发生的动作。如They were playing football at ten o’clock yesterday morning． My mother was cooking when I got home． I was washing my clothes at this time yesterday． 2 过去某阶段持续进行的动作　What were you doing during the holiday?　另外，在复合句中，若主要动作和背景动作是同时发生的，那么主从句都可用过去进行时．如 Jenny was reading while Danny was writing．
一．过去进行时常与过去某一特定时间的状语连用，如 last night， at that time，at noon yesterday， last Sunday 等。 也有时没有时间状语，要通过上下文的暗示来确定用过去进行时。E．g． The students all worked hard． Everyone knew what he was working for．
二.其结构是助动词be的过去形式was/were ＋v－ing．
其句式变化仍然要在be上做文章。
肯定句：We were working in class．否定句：We weren’t working in class．　　
一般疑问句：Were you working in class? 特殊疑问句：What were you doing in class.
做题时常见错误如下：
一、易把be＋现在分词记成be＋过去分词
　　例：He was talked （talk） to his mum at that time．答案：was talking
　　解析：过去进行时与现在进行时结构上的区别体现在be动词上。
二、丢掉be动词或忘记把动词变成现在分词
　　例：1 I watching（watch）TV when he came in．答案：was watching　
　　2 They were play（play）games at 5：00 p．m． yesterday．答案： were playing
　　解析：现在进行时中“be＋现在分词，缺一不可”的规律也可应用于过去进行时。
三、对动词或动词词组提问时丢掉doing
　　例：We were flying kites at 5：00 p.m yesterday． （对划线部分提问）
　　What were you at 5：00 p.m yesterday? 误
　　答案：What were you doing at 5：00 p.m yesterday?
　　解析：现在进行时中“What……doing……”?句式同样适用于过去进行时。
四、易与现在进行时弄混
　　例：My mother is cooking（cook）when I got home．答案：was cooking
　　解析：这两种时态的共同点是都表示动作正在进行，但现在进行时前提是现在，而过去进行时前提是过去，由when I got home可看出前提是过去。
五、易与一般过去时弄混
　　例：昨晚我在读一本故事书。
　　I read（read）a story book yesterday evening．答案：was reading
　　解析：这两种时态的共同点是都用于表示过去发生的动作。但过去进行时强调动作正在进行，而一般过去时则表示过去某一时间所发生的动作或存在的状态，它表示的动作往往已经完成。“在”说明正在进行，而“I read a story book yesterday evening．”的意思是昨晚我读了一本故事书，言下之意已经读完了。故用过去进行时。
　　另外，在宾语从句中当主句为过去时，从句若是现在进行时，需变成过去进行时。
　　e．g． He said that he was drawing a cat at noon yesterday．
一．　填入以下单词的正确形式。
1．My brother came into the bedroom while I ____ _____(dance)
2．______ he ________(lie) on the ground at nine yesterday evening ?
3 What _____ Jim __________(write) when the teacher came in ?
4．. Mike and I _____ ___(play) baskteball at that time yesterday afternoon.
5．I first met Lisa three years ago. She ____ __(work) at a radio shop at that time._
二.按要求进行句型转换。
1. We were having a PE class at four yesterday afternoon.
改为否定句
2. Kate was reviewing her lessons at eight last night.
一般疑问句:
对划线部分提问
4. They were playing computer games at nine last night.
对划线部分提问:
5. I was reading a novel at three o’clock yesterday afternoon.
对划线部分提问
四、单选
　　1 What ______ from three to four yesterday afternoon?
　A have you done　 B had you done　C did you do　D were you doing
　　2 – I call you yesterday evening， but there was no answer．
　　－ Oh．， I’m sorry I _____ dinner at my friend’s home．
　　A home　B had　C was having　D have had
　　3 My mother _____ while my father _____TV．
　　A cooked； was watching　 B was cooking； was watching
　　C was cooked； watched　 D cooked； watched
　　4 When I got home， my son _____ the music．
A am listening to　 B listened to C was listening to　D was listening
　　5 We heard a cry when we ______ TV last night．
　　A were watching　B would watch　 C watch　 D watched
　　6 She asked him whether he _____ back for lunch．
　　A come　B was coming　C came　D had come
　　7 Could you tell me when ______?
　　A she is coming　 B she was coming　 C will be come　 D is he coming
　　8 The teacher ______ when I came into the classroom．
　　A is drawing　 B draws　 C has drawn　 D was drawing
　　9 The pizza ______ by my mother． Would you like to have some?
　　A makes　B was making　 C made　 D was made
　　10 Nobody noticed what she ______ at the moment．
　　A will do　 B was doing　 C has done　 D had done